The number inside the radical symbol

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Presentation transcript:

The number inside the radical symbol Square Roots and Radicals Simplify Square Root of a Number: Radical Symbol: Radicand: Perfect Squares MEMORIZE!! 132= 172= 142= 142= 152= 192= 162= 202= If b2 = a, then b is a square root of a The number inside the radical symbol

Any number you can write in the form Cannot be written in the form Rational and Irrational Square Roots State whether the number is rational or irrational. Rational #: 1. 2. 3. Irrational #: 4. 5. Any number you can write in the form Cannot be written in the form

Find the two closest perfect squares Approximate the value of a non-perfect square root: Steps: 1) 2) 3) 1. 2. 3. Find the two closest perfect squares (one greater than and one less than) See where your number fits between them Make a decimal approximation (to the nearest tenth)

two answers to a problem Evaluate expressions when a = 1, b = 2, c = 4 The symbol (plus or minus) will cause two answers to a problem 4. 7. 10. 12. 5. 8. 11. 13. 6. 9.